/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.sqlparser.ast;

import java.util.ArrayList;
import java.util.List;
import studio.raptor.sqlparser.visitor.SQLASTVisitor;

public class SQLDataTypeImpl extends SQLObjectImpl implements SQLDataType {

  protected final List<SQLExpr> arguments = new ArrayList<SQLExpr>();
  protected String name;

  public SQLDataTypeImpl() {

  }

  public SQLDataTypeImpl(String name) {

    this.name = name;
  }

  @Override
  protected void accept0(SQLASTVisitor visitor) {
    if (visitor.visit(this)) {
      acceptChild(visitor, this.arguments);
    }

    visitor.endVisit(this);
  }

  public String getName() {
    return this.name;
  }

  public void setName(String name) {
    this.name = name;
  }

  public List<SQLExpr> getArguments() {
    return this.arguments;
  }

  public void addArgument(SQLExpr argument) {
    if (argument != null) {
      argument.setParent(this);
    }
    this.arguments.add(argument);
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + arguments.hashCode();
    result = prime * result + ((name == null) ? 0 : name.hashCode());
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj == null) {
      return false;
    }
    if (getClass() != obj.getClass()) {
      return false;
    }
    SQLDataTypeImpl other = (SQLDataTypeImpl) obj;
    if (!arguments.equals(other.arguments)) {
      return false;
    }
    if (name == null) {
      if (other.name != null) {
        return false;
      }
    } else if (!name.equals(other.name)) {
      return false;
    }
    return true;
  }

}
